| plane refuel | 1.97 | Some military planes can refuel in mid-air. | ||
| ship refuel | 0.86 | U.S. Navy ships commonly refuel in Aden. | ||
| crew refuel | 0.26 | The crew refueled the airplane. | ||
| warship refuel | 0.26 | Three other U.S. warships have refueled there since last May, Clark said. |